Update app.py

app.py

@@ -13,8 +13,18 @@ PER_PAGE = 5
 # --- Function to search Pixabay ---
 def search_pixabay(query: str, media_type: str, image_type: str, orientation: str, video_type: str):
     """
-    Searches Pixabay API and returns a random result URL and status message.
-    Takes all type/orientation inputs, but uses them based on media_type.
+    Searches the Pixabay API for royalty-free stock images or videos based on user query and filters.
+    
+    Args:
+        query (str): The search term for finding media. If empty, an error is returned.
+        media_type (str): Specifies the type of media to search for.
+                         Accepted values are "Image" or "Video".
+        image_type (str): Filter results by image type (used only if media_type is "Image").
+                          Accepted values: "all", "photo", "illustration", "vector".
+        orientation (str): Filter results by image orientation (used only if media_type is "Image").
+                           Accepted values: "all", "horizontal", "vertical".
+        video_type (str): Filter results by video type (used only if media_type is "Video").
+                          Accepted values: "all", "film", "animation".
     """
     if not query:
         return None, None, "Please enter a search query."